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| author |   Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2021-11-23 21:27:21 +0200 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2021-11-29 12:19:58 +0000 |
| commit | 342e3ce0f6f4691b31b1c7c9c3ae37160c4a82d2 (patch) | |
| tree | 22ffb33acbc93c8db4c32437b98e3304e8cbc6a2 /arch/arm/mach-pxa | |
| parent | spi: tegra210-quad: use devm call for cdata memory (diff) | |
| download | linux-dev-342e3ce0f6f4691b31b1c7c9c3ae37160c4a82d2.tar.xz linux-dev-342e3ce0f6f4691b31b1c7c9c3ae37160c4a82d2.zip | |
ARM: pxa/lubbock: Replace custom ->cs_control() by GPIO lookup table
SPI PXA2xx driver supports GPIO chipselect by querying for known
GPIO connection ID. Replace custom ->cs_control() by GPIO table,
so the driver will use generic approach on this platform.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211123192723.44537-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'arch/arm/mach-pxa')
| -rw-r--r-- | arch/arm/mach-pxa/lubbock.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c index 742d18a1f7dc..e2411971422d 100644 --- a/arch/arm/mach-pxa/lubbock.c +++ b/arch/arm/mach-pxa/lubbock.c @@ -211,16 +211,17 @@ static struct ads7846_platform_data ads_info = { // .y_plate_ohms = 500, /* GUESS! */ }; -static void ads7846_cs(u32 command) -{ - static const unsigned TS_nCS = 1 << 11; - lubbock_set_misc_wr(TS_nCS, (command == PXA2XX_CS_ASSERT) ? 0 : TS_nCS); -} +static struct gpiod_lookup_table ads7846_cs_gpios = { + .dev_id = "ads7846", + .table = { + GPIO_LOOKUP("lubbock", 11, "cs", GPIO_ACTIVE_LOW), + {} + }, +}; static struct pxa2xx_spi_chip ads_hw = { .tx_threshold = 1, .rx_threshold = 2, - .cs_control = ads7846_cs, }; static struct spi_board_info spi_board_info[] __initdata = { { @@ -512,6 +513,8 @@ static void __init lubbock_init(void) lubbock_flash_data[flashboot].name = "boot-rom"; (void) platform_add_devices(devices, ARRAY_SIZE(devices)); + gpiod_add_lookup_table(&ads7846_cs_gpios); + pxa2xx_set_spi_info(1, &pxa_ssp_master_info); spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info)); } |